What process improves GNSS accuracy by utilizing base-station corrections?

The process that enhances Global Navigation Satellite System (GNSS) accuracy through the use of base-station corrections is differential correction. This technique involves a network of stationary reference stations that compare their known positions with the positions computed from satellite signals. By analyzing the discrepancies between the actual and computed positions at these fixed stations, corrections can be calculated. These corrections are then transmitted to mobile receivers, allowing them to apply adjustments for any errors caused by atmospheric conditions, satellite orbit inaccuracies, or other factors.

Differential correction significantly increases the precision of GNSS positioning, often improving accuracy to the level of centimeters. It is widely used in various applications, including surveying and geospatial data collection, where high accuracy is essential.

The other processes mentioned do not specifically involve the use of base-station corrections in the same manner. Satellite triangulation generally refers to determining a position based on angles from known points, while Radar correction relates to the use of radar technology, which is different from GNSS. Network RTK, while also improving accuracy, does so through a network of real-time kinematic systems rather than the basic differential correction technique.